My home Kubernetes cluster started out on a Core i7-920 with 8 GB of memory.

Upgraded to 16 GB memory

Upgraded to a Core i5-2400S

Upgraded to a Core i7-3770

Upgraded to 32 GB memory

Recently Upgraded to a Core i5-7600K

I think I’ll stay with that for rather long…

I did however add 2 Intel NUCs (gen 6 and gen 8) to the cluster to have a distributed control plane and some distributed storage.